|  | # just for testing locally
import http.server
class MyHTTPRequestHandler(http.server.SimpleHTTPRequestHandler):
    def end_headers(self):
        self.send_my_headers()
        http.server.SimpleHTTPRequestHandler.end_headers(self)
    def send_my_headers(self):
        self.send_header("Cache-Control", "no-cache")
        self.send_header("Pragma", "no-cache")
        self.send_header("Expires", "0")
if __name__ == '__main__':
    http.server.test(HandlerClass=MyHTTPRequestHandler)
 |